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3 years ago

When light waves hit ice, most of them bounce off and radiate back into space. Because of this, it can be said that ice is a(n)

Physics

2 answers:

Softa [21]3 years ago

8 0

Reflective~~~~~~~~~~~~~~~~~~~~~~

kirill [66]3 years ago

8 0

Answer;

Reflective surface

Explanation;

Reflection is one of the property of a wave that occurs when a wave hits a boundary which is a reflective surface. The wave bounces off upon hitting the reflective boundary, such that the angle of incidence is equal to the angle of reflection.
Therefore, ice is an example of a reflective surface as light waves bounces off and radiate back when they hit the surface of the ice.

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will the value of g be affected by the radius of the earth? consider the real shape of the earth. compare the acceleration due t

sp2606 [1]

Answer:

Yes, the value of g affected by the radius.

Explanation:

The formula for the force of gravity of 2 objects is

$F_{gravity} = G\frac{m_{1}m_{2}}{r^2}$ , where m1 and m2 are the masses of the 2 objects, r is the radius, and G is the gravitational constant, which is approximately $6.67 \cdot 10^{-11}$ .

Therefore, as the radius if bigger, the force of gravity is going to be smaller exponentially.

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4 years ago

At 1.70 atm, a sample of gas takes up 4.25L. If the pressure in the gas is increased to 2.40 atm, what will the new volume be?

ozzi

Answer:

This question is an example of Boyle's gas law which states that the pressure of a given mass of a gas is inversely proportional to its volume at a constant temperature. The formula for this gas law is:

P1·V1 = P2·V2

P1 = initial pressure = 1.7 atm

V1 = initial volume = 4.25 L

P2 = final pressure = 2.4 atm

V2 = final volume = ?

Rearrange the formula to isolate V2. Substitute the known data and solve.

V2 = P1·V1/P2

V2 = 1.7 atm·4.25 L/2.4 atm = 3.0 L to two significant figures

The new volume will be ~3.0 L.

Explanation:

3 0

3 years ago

What's the general relationship between mass and gravitational force ?

Hitman42 [59]

Answer:

Gravity is the attraction between two objects that have mass. The amount of gravity is directly proportional to the amount of mass of the objects and inversely proportional to the square of the distance between the objects. Gravity is a force that increases the velocity of falling objects - they accelerate.

Explanation:

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3 years ago

Motion is the process of changing ___

Veseljchak [2.6K]

Motion is the process of changing position.

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3 years ago

Shinra wants to find and save his younger brother Sho. In order to do this

Debora [2.8K]

Answer:

My answer is 250m/sec

Explanation:

the formula is clearly

Speed = Distance

Time

Speed = 500meters (Divide the two)

2seconds

Speed = 250m/sec

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3 years ago

Read 2 more answers